Developing effective institutions for water resources management: A case study in the Deduru Oya Basin, Sri Lanka

River basins / Water resource management / Water lifting / Wells / Domestic water / Population / Economic aspects / Income / Irrigation programs / Institutions / Policy / Groundwater / Agricultural development / Fish farming / Pumps / Ecology / Water supply / Drought / Poverty / Land use / Water scarcity / Natural resources / Agricultural production / Cropping systems

TIME ON THE MARKET OF RESIDENTIAL CONDOMINIUM UNITS WITH PRE-SALE ARRANGEMENT IN COLOMBO DISTRICT

The purpose of this paper is to study the time on market (TOM) for residential condominium units under pre sales arrangements and what key factors drive that TOM. The contextual understanding of previous studies on TOM for residential properties confined for properties sold either in the secondary market or properties where construction is completed. This study focuses on the relationships among TOM, listed price, and basic property characteristics of residential condominium units sold under the provisional condominium plan in Colombo, Sri Lanka. Following non-probability sampling technique, this study examines TOM of 189 pre-sale residential condominium units in Colombo district which came into market between 2016 January to 2019 January. Developers were approached to collect required data such as transaction price, transaction date, final listed date listed price, number of bedrooms, number of bathrooms, floor area, floor level, construction completion, discounting rates likewise. Data analysis followed descriptive statistics, Pearson Correlation, and multiple regression model. The analysis highlighted that from January-2016 to January-2019, TOM of provisional residential condominiums of Colombo varied from 12.76 to 5.51 months. The results further highlighted that the TOM of a pre-sale provisional residential condominium unit is a function of floor area, number of bathrooms, level of the unit, construction completion & discount rate. The study highlights that during the period considered, the floor area units of 744sqft at the initial stage of construction with a discount rate between 10% to 20% from the listed price can predicted to have the lowest TOM.. Keywords: Time on the Market; Pre-sale; Residential Condominium Units; Listed Price; TransactionPrice

DOES PROXIMITY TO WATER BODIES IMPACTS MARKET VALUES OF RESIDENTIAL PROPERTIES? CASE STUDY OF DIYAWANNAWA LAKE AREA

This study examined the impact of water bodies with a scenic view on residential property values around Diyawannawa lake located within Sri Jayewardenepura Kotte Municipal council (a suburban area of Colombo district). The study employed both primary (structural and environmental data related to properties, different types of benefits generated from waterbodies) and secondary data (market evidence) whilst the data analysis included content analysis and a regression analysis (hedonic pricing model). Water bodies with scenic views generate multiple utilities for residents such as observing nature, relaxation, and playing, pleasant views, appreciation of colour and sounds, relationships with family members and neighbors, a place to exercise and cycling, stress relief likewise. According to the study, between 2019-2020, a residential property with a scenic view of 600 or more to Diyawannawa Lake had a premium market value of Rs. 803,433.05 compared to other properties. Furthermore, the residential properties one meter away from such water body showed a decrease in market value of Rs. 23049.65. These findings will raise awareness on the benefits of water bodies with scenic views and it will lead to greater acceptance by residents, developers, local authorities to invest and protect them, which could contribute to overcoming one of the barriers to maintaining such water bodies in good condition. Keywords: water bodies; residential property; market valu

Tenants’ Perception on Housing Maintenance Culture in Public Housing in Kurunegala District, Sri Lanka

Public housing is one of the facilities for public servants in Sri Lanka. Maintenance of those housing are problematic due to lack of maintenance culture. Lack of studies focused on the issue and significant research gap existed in this area. The aim of this study is to investigate the tenants’ perceptions of the housing maintenance culture in the public housing of Kurunegala district, Sri Lanka. The study data focused on public tenants living in schedule and general service quarters, and officials from 11 institutions' state departments. The study focused on mainly socio-cultural perception, proxemics, and motivation. The results indicated that socio-cultural perception, proxemics, and motivation variables highly influence the enhancement of the housing maintenance culture in public housing. The study suggests that the state should revisit its housing maintenance institutional policies and practises to ensure that bureaucratic aspects are lowered, that the housing maintenance regulatory framework be inspected toconfirm effective housing maintenance, and that acceptable and satisfactory personnel be deployed within the servicing docket. © 2022 The Authors. Published by Department of Estate Management and Valuation, University of SriJayewardenepura Keywords: Housing Maintenance Culture, Public Housing, Tenants Perceptio

Optimizing CIGB-300 intralesional delivery in locally advanced cervical cancer

Background:We conducted a phase 1 trial in patients with locally advanced cervical cancer by injecting 0.5 ml of the CK2-antagonist CIGB-300 in two different sites on tumours to assess tumour uptake, safety, pharmacodynamic activity and identify the recommended dose.Methods:Fourteen patients were treated with intralesional injections containing 35 or 70 mg of CIGB-300 in three alternate cycles of three consecutive days each before standard chemoradiotherapy. Tumour uptake was determined using 99 Tc-radiolabelled peptide. In situ B23/nucleophosmin was determined by immunohistochemistry.Results:Maximum tumour uptake for CIGB-300 70-mg dose was significantly higher than the one observed for 35 mg: 16.1±8.9 vs 31.3±12.9 mg (P=0.01). Both, AUC 24h and biological half-life were also significantly higher using 70 mg of CIGB-300 (P<0.001). Unincorporated CIGB-300 diffused rapidly to blood and was mainly distributed towards kidneys, and marginally in liver, lungs, heart and spleen. There was no DLT and moderate allergic-like reactions were the most common systemic side effect with strong correlation between unincorporated CIGB-300 and histamine levels in blood. CIGB-300, 70 mg, downregulated B23/nucleophosmin (P=0.03) in tumour specimens.Conclusion:Intralesional injections of 70 mg CIGB-300 in two sites (0.5 ml per injection) and this treatment plan are recommended to be evaluated in phase 2 studies.Fil: Sarduy, M. R.. Medical-surgical Research Center; CubaFil: García, I.. Centro de Ingeniería Genética y Biotecnología; CubaFil: Coca, M. A.. Clinical Investigation Center; CubaFil: Perera, A.. Clinical Investigation Center; CubaFil: Torres, L. A.. Clinical Investigation Center; CubaFil: Valenzuela, C. M.. Centro de Ingeniería Genética y Biotecnología; CubaFil: Baladrón, I.. Centro de Ingeniería Genética y Biotecnología; CubaFil: Solares, M.. Hospital Materno Ramón González Coro; CubaFil: Reyes, V.. Center For Genetic Engineering And Biotechnology Havana; CubaFil: Hernández, I.. Isotope Center; CubaFil: Perera, Y.. Centro de Ingeniería Genética y Biotecnología; CubaFil: Martínez, Y. M.. Medical-surgical Research Center; CubaFil: Molina, L.. Medical-surgical Research Center; CubaFil: González, Y. M.. Medical-surgical Research Center; CubaFil: Ancízar, J. A.. Centro de Ingeniería Genética y Biotecnología; CubaFil: Prats, A.. Clinical Investigation Center; CubaFil: González, L.. Centro de Ingeniería Genética y Biotecnología; CubaFil: Casacó, C. A.. Clinical Investigation Center; CubaFil: Acevedo, B. E.. Centro de Ingeniería Genética y Biotecnología; CubaFil: López Saura, P. A.. Centro de Ingeniería Genética y Biotecnología; CubaFil: Alonso, Daniel Fernando. Universidad Nacional de Quilmes; ArgentinaFil: Gómez, R.. Elea Laboratories; ArgentinaFil: Perea Rodríguez, S. E.. Center For Genetic Engineering And Biotechnology Havana; Cuba. Centro de Ingeniería Genética y Biotecnología; Cub

Dynamic criticality in glass-forming liquids

We propose that the dynamics of supercooled liquids and the formation of glasses can be understood from the existence of a zero temperature dynamical critical point. To support our proposal, we derive from simple physical assumptions a dynamic field theory for supercooled liquids, which we study using the renormalization group (RG). Its long time behaviour is dominated by a zero temperature critical point, which for dimensions d > 2 belongs to the directed percolation universality class. Molecular dynamics simulations confirm the existence of dynamic scaling behaviour consistent with the RG predictions.Comment: 4 pages, 2 figure